Epicanthal skin fold and simian crease are ch | vedclass

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(A) $Down$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ (trisomy of $21$).Individuals wit

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Down syndrome

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(A) $Down$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ (trisomy of $21$).Individuals with $Down$ syndrome exhibit several characteristic physical features,including a broad forehead,a furrowed tongue,and a characteristic palm crease known as the simian crease.They also typically present with epicanthal skin folds (a skin fold of the upper eyelid that covers the inner corner of the eye).Therefore,these features are diagnostic characteristics of $Down$ syndrome.

Epicanthal skin fold and simian crease are characteristics of

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